"100% from scratch inovation is rare these days, virtually everything has its roots in something else.

I would argue that innovation never happens and has never happened from scratch. Nothing is ever created in a vacuum. Everything "new" is influenced by what came before it.

J. Michael Straczynski said one time that "good writers borrow, bad writers steal." A good writer will take old ideas and add to them. The same thing happens in all of the other creative arts including coding and engineering. "

Picasso was quoted as good artists copy, great artists steal. They see the vision where it could go and capitalize on it and create their own style.